Opened 5 years ago

Last modified 5 years ago

#45 new defect

Add support for __atomic_* libcalls

Reported by: Vladimír Štill Owned by:
Priority: major Milestone: 5.0
Component: DiOS Keywords:
Cc:

Description

In some code (such as boost::lockfree), there are 128bit atomics, which are lowered to __atomic_* calls by clang (see ​https://llvm.org/docs/Atomics.html#libcalls-atomic). We should add support for these.

Normally, these functions are provided by libatomic.so which originates from GCC (​https://github.com/gcc-mirror/gcc/tree/master/libatomic).
It seems we might be able to take them from compiler-rt (​https://github.com/llvm-mirror/compiler-rt/blob/master/lib/builtins/atomic.c).

Change History (1)

comment:1 Changed 5 years ago by mornfall

Milestone: future → 5.0

Milestone renamed

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